Wheelbarrow-wheel.



No 869,348- PATENTED OUT. 29. 1907.

' O. A. BAKER & T. L. SMITH.

WHBELBARROW WHEEL. APPLIOATION FILED 5112110, 1906.

UNITED STATES PATENT OFFICE.

CHARLES A. BAKER AND THOMAS ll. SMITH, (.ll" MIIAYAUKEH. \VlSCONSlN,ASSIGNOHS TO STERLING WI'IEELBARROW tOMPANY, OF Mlbll'rflllil lll,\l'lSUONSlN, A C(illllORAllON OF WISCONSIN.

WHEELB ARROW-WHEEL.

Specification of Letters Patent.

Patented Oct. 29, 1907'.

To all whom it may concern:

Be it known that we, CHARLES A. BAKER and Tnorras L. SMITH, residing inMilwaukee, county of Milwaukee, and State of Wisconsin, have inventednew and useful improvements in Wheelbarrow-Wheels, of which thefollowing is a description reference being had to the accompanyingdrawings, which are a part of this specification.

This invention has for its object to improve? upon the construction ofwheelbarrow wheels to render them easy-running without complication andto produce a roller bearing wheelbarrow wheel of minimum cost.

Another object of this invention is to provide a bracket constructionfor mounting a wheelbarrow wheel on the wheelbarrow which will permit ofvariation in its positioning without binding.

With the above and other objects in view the invention consists in thewheelbarrow wheel herein claimed, its parts and combinations of partsand all equivalents.

Referring to the accompanying drawings in which like characters ofreference indicate like parts in the several views: Figure 1 is aninverted plan view of the wheelbarrow Wheel constructed in accordancewith this invention; Fig. 2 is an end elevation thereof; and, Fig. 3 isan end elevation of one end of the wheel spindle with the bracketremoved and showing the roller bearingv In these drawings 5 represents acircular rim which is connected by radial spokes 6 to a cast hub 7 on atubular sleeve 8, the construction of the rim, spokes and hub beingimmaterial to this invention. The tubular sleeve 8 is made of heavymetal tubing countersunk at its ends to produce perfectly true race-waysfor series of rollers 9 which are located therein between the ends ofthe tubular sleeve and a pin 10 which extends entirely through thesleeve. The countersunk portions at the ends of the tubular sleeveproduce shoulders ll against which fit rings or washers .12 to form endabutments for the series of rollers 9, the rings being of smallerinternal diameter than the sleeve to produce a greater abutment for therollers than would be produced by the shoulders alone. The rings areeasily re movable to be replaced when worn.

The ends of the pin 10 which project from the roller bearings entertapering openings 13 in connecting brackets 14, the smaller ends of theopenings being next to the roller bearings, and the connecting bracketsbeing countersunk to form cup-shaped sockets or recesscs 15 to receivethe ends of the sleeve 8. The parts of the connecting brackets 14 litloosely on the ends of the sleeve and on the pin 10 without allowing agreat amount of play for the pin, but permitting variation in thepositioning of the connecting brackets by'rcason of the taperingopenings 13 without binding. The inside faces of the sockets 15 formabutments for the series of rollers 9 and serve in conjunction with therings 12 to keep the rollers in their proper position, while thecupshaped formation of the sockets prevents dirt entering the rollerbearings. Cotter pins 16 are passed through the internally taperingtubular parts of the connecting brackets and through the ends of the pin[0 to hold the connecting brackets in position on the pin and in properrelation to the wheel. The connecting brackets 14 are clamped by bolts17 to the front ends of the handles 18 of a wheelbarrow as usual.

The main feature of advantage of this invention is the simplicity ofconstruction which renders the device in expensive to manufacture andproduces a durable and ellicient easy-running wheel. The formation ofthe race-ways by countersinking the ends of a tubular spindle andfitting rings against the internal shoulders thus produced permits ofthe tubular spindle being formed of light material and'still possessingthe necessary end abutment for the series of rollers. The tapering opening in the connecting bracket prevents binding with the pin as theresult of inaccuracy in workmanship in constructing the wheel with its.bearings or in mounting the wheel on awheelbarrow, this beingaccomplished without allowing a great amount of play between the pin andthe connecting brackets.

What we claim as new and desire to secure by Letters Patent is:

l. wheelbarrow wheel having a tubular spindle with its bore countersunkat its ends forming internal shoulders, rings lilting in the countersunkbores of rho tubularspindlc against the internal shoulders thereof,series of rollers located in the countersunk bores and hold in place bythe rings. a pin passing through the tubular spindle and bearing on therollers, and connecting brackets mounted on the ends of the pin andholding the rollers in place.

2. A wheelbarrow wheel having a tubular spindle with its borecountersunk at its ends forming internal shouldcrs, rings lilting in thecountersunk bores of the tubular spindle against the internal shouldersthereof, series of rollers located in the countersunk bores and held inplace by the rings. a pin passing through the tubular spindle andbearing on the rollers. and connecting brackets secured to the pin andhaving cup-shaped sockets to receive and protect the ends of the tubularspindle and hold the rollers in place.

A wheelbarrow wheel having a tubular spindle, a pin passing through thetubular spindle, roller bearings between the pin and the tubularspindle, connecting brackets having openings through which the pinloosely passes, and means for connecting the pin with the connectingbrackets in a manner to permit of movement of the pin in said openings.

l. A wheelbarrow wheel having a tubular spindle, a pin passing throughthe tubular spindle, roller bearings between the pin and the tubularspindle, connecting brackets having tapering openings through which thepin passes, and means [or connecting the pin with the connectingbrackets 54 A wheelbarrow wheel having a tubular spindle, a pin passingthrough the tubular spindle, roller bearings between the pin and thetubular spindle at the ends of the tubular spindle, connecting bracketshaving tapering openings through which the ends of the pin pass, saidconnecting brackets serving to hold the roller hearings in place, andmeans for securing the connecting brackets to the ends of the pin.

U. A wheelbarrow wheel having a tubular spindle With its borecountersunk at its ends forming; internal shoulders, rings fitting inthe countersunk bores against the internal shoulders, a pin passingthrough the tubular spindle and the rings, series of rollers fitting inthe countersunk ends of the tubular spindle and held in place by therings, connecting brackets having tapering openings through which theends of the pin pass and provided with cup-shaped recesses to receiveand protect the ends of the tubular spindle and hold the rollers inplace, the tapering openings of the connecting brackets permittingvariations in the positioning thereof with relation to the pin, andcotter pins connecting the ends of the pin with the connecting brackets.

7. A wheelbarrow wheel having a tubular spindle, a pin passing throughthe tubular spindle, roller bearings between the pin and the tubularspindle, connecting brackets having openin s through which thepin-loosely passes, and cotter pins passing through the connectingbrackets and the ends of the pin and permitting movement of the pin inthe openings 01' the connecting brackets.

in testimony whereof, we affix our signatures, in presence of twowitnesses.

CHARLES A. BAKER. THOMAS L. SMITH.

Witnesses to Charles A. Baker's signature:

ANNA F. SCHMIDTBAUEH, I1 C. CALDWELL.

Witnesses to Thomas L. Smith's signature:

Muir BELLE CHASE, ANXIE A. Sm'rir.

